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1.
Indian J Crit Care Med ; 24(10): 986-990, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-33281328

RESUMEN

INTRODUCTION: Snakebites are one of the commonest occupational hazards in tropical countries and viperine bites are potential to cause systemic toxicity. Coagulopathies and acute kidney injury (AKI) have been documented and easily dealt with in past, but pulmonary hemorrhage has been rarely seen and plasmapheresis has shown promising result for the same. This case reports highlight the effective use of plasmapheresis for pulmonary hemorrhage post-snakebite. BACKGROUND: Viperine snakebite has been associated with high morbidity and mortality due to its toxic systemic envenomization. The important systemic manifestations are coagulopathy, neuromuscular paralysis, AKI, myotoxicity, and cardiovascular collapse. Antivenomization, renal replacement therapy, steroids, and other supportive care are considered to be the mainstay of treatment till date. Pulmonary hemorrhage has been an unusual manifestation of viper bite and rarely reported and steroids have been used in such scenario but with mixed results. Role of plasmapheresis has been documented in the management of snakebite but especially for hematological problems and in limb preservation/salvage strategies. The use of same, for pulmonary hemorrhage has not been studied yet. Here, we present a rare case of pulmonary hemorrhage along with renal failure following viper bite which was successfully treated with plasmapheresis. To the best of our knowledge, it is a rare presentation and has not been reported in the literature reviewed till date. CASE DESCRIPTION: A previously healthy, 36-year-old man presented to our hospital 48 hours after a viper bite. He developed local as well systemic manifestations evident as hemolysis and renal failure. Gradually, he started having hemoptysis followed by respiratory failure requiring ventilatory support. CT chest done was s/o bilateral pulmonary hemorrhages correlating clinically with ongoing tracheal bleed. He had no other bleeding manifestations and had normal coagulation profile. He was initially treated with methylprednisolone therapy, but then did not show any improvement and finally plasmapheresis was done as rescue therapy. Following this, he had improvement in respiratory parameters and settling tracheal bleed with resolution of radiological changes. He was successfully weaned off from the ventilation and also his renal failure also improved with near normalization of pulmonary and renal functions. CONCLUSION: This case highlights the unusual presentation of pulmonary hemorrhage in a patient with viperine bite with normal coagulation and was aggressively managed with plasmapheresis. Hence, plasmapheresis can be used as life-saving modality in patients with systemic envenomization post-viperine bit. HOW TO CITE THIS ARTICLE: Sampley S, Sakhuja V, Bhasin D, Singh K, Singh H. Plasmapheresis for Pulmonary Hemorrhage Following Viperine Snakebite: A Case Report with Review of Literature. Indian J Crit Care Med 2020;24(10):986-990.

3.
Kidney Int ; 89(1): 235-42, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26489028

RESUMEN

No previous study has compared mycophenolate mofetil (MMF) with low-dose cyclophosphamide (CYC) in the treatment of lupus nephritis (LN). To do so, we recruited patients with LN (class III, IV, or V) and randomized them to receive either low-dose CYC or oral MMF. Those with crescentic LN, a serum creatinine over 265 µmol/l, and neurological or pulmonary lupus were excluded. MMF was prescribed at daily doses of 1.5-3 g for 24 weeks, while CYC was administered as six fortnightly infusions of 500 mg each. All patients received three methylprednisolone injections, followed by oral corticosteroids. Maintenance therapy with azathioprine and low-dose corticosteroid was started at end of induction therapy. The primary end point was treatment response at 24 weeks, while secondary end points were complete remission, Systemic Lupus Erythematosus Disease Activity Index and adverse events. Of the 173 patients recruited, 100 were equally randomized to receive either CYC or MMF. Baseline characteristics were similar, except for higher 24 h proteinuria in the CYC group. At 24 weeks, 37 patients in each group achieved the primary end point. The complete remission rate was 50% in CYC and 54% in MMF group. Gastrointestinal symptoms were significantly more frequent in patients receiving MMF (52 vs. 4%). However, other adverse events were similar. Thus, low-dose intravenous CYC is comparable in safety and efficacy to oral MMF in the induction treatment of less severe LN.


Asunto(s)
Ciclofosfamida/administración & dosificación , Inmunosupresores/administración & dosificación , Quimioterapia de Inducción/métodos , Nefritis Lúpica/tratamiento farmacológico , Ácido Micofenólico/administración & dosificación , Administración Intravenosa , Administración Oral , Adolescente , Adulto , Antiinflamatorios/uso terapéutico , Azatioprina/uso terapéutico , Ciclofosfamida/efectos adversos , Ciclofosfamida/economía , Costos de los Medicamentos , Femenino , Enfermedades Gastrointestinales/inducido químicamente , Humanos , Inmunosupresores/efectos adversos , Inmunosupresores/economía , Quimioterapia de Inducción/efectos adversos , Quimioterapia de Mantención , Masculino , Metilprednisolona/uso terapéutico , Ácido Micofenólico/efectos adversos , Ácido Micofenólico/economía , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Adulto Joven
4.
Nephrol Dial Transplant ; 31(9): 1486-93, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-26673907

RESUMEN

BACKGROUND: Antibodies to M-type phospholipase A2 receptor (PLA2R) correlate with clinical activity of primary membranous nephropathy (PMN). Risk alleles in PLA2R1 and HLA-DQA1 genes are associated with PMN. Whether these alleles are associated with the development of anti-PLA2R is unknown. In this prospective study we evaluated anti-PLA2R, enhanced glomerular staining for PLA2R and variations in PLA2R1 and HLA-DQA1 genes in Indian patients with PMN and examined their association with response to treatment. METHODS: A total of 114 adult PMN patients were studied. Anti-PLA2R was estimated before treatment and after 6 and 12 months of therapy. Enhanced glomerular staining for PLA2R was assessed on fresh frozen tissue. Genotype analysis was done on recruited patients and 95 healthy controls by TaqMan assays for six single-nucleotide polymorphisms (SNPs; rs4664308, rs3749119, rs3749117, rs4664308, rs3828323 and rs2187668). Patients were followed up monthly for a period of 12 months. RESULTS: Of 114 patients, 66.7% showed elevated serum anti-PLA2R by ELISA and 64.9% by indirect immunofluorescence. About 75% had enhanced glomerular staining for PLA2R. A total of 82% of patients had PLA2R-related disease. Reduction in serum anti-PLA2R titer had a significant association with remission of nephrotic syndrome (P = 0.0003) at 6 and 12 months. More than 85% of patients showing >90% reduction in the anti-PLA2R titer achieved remission of the nephrotic state, whereas of those showing <50% reduction in titers, 87.5% had persistent nephrotic state. The SNPs rs3749119, rs3749117, rs4664308 in PLA2R1 and rs2187668 in HLA-DQA1 were significantly associated with PMN. The SNP rs2187668 was associated with anti-PLA2R positivity. Patients with a high-risk genotype had higher anti-PLA2R levels. CONCLUSION: To conclude, anti-PLA2R and enhanced glomerular PLA2R staining are found in more than two-thirds of Indian PMN cases. A reduction in the anti-PLA2R titer correlated with response to therapy.


Asunto(s)
Pueblo Asiatico/genética , Autoanticuerpos/sangre , Glomerulonefritis Membranosa/genética , Cadenas alfa de HLA-DQ/genética , Polimorfismo de Nucleótido Simple/genética , Receptores de Fosfolipasa A2/inmunología , Adolescente , Adulto , Anciano , Estudios de Casos y Controles , Niño , Ensayo de Inmunoadsorción Enzimática , Femenino , Genotipo , Glomerulonefritis Membranosa/sangre , Glomerulonefritis Membranosa/inmunología , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Receptores de Fosfolipasa A2/genética , Adulto Joven
5.
Nephrology (Carlton) ; 21(2): 139-46, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26205759

RESUMEN

AIM: There have been very few studies comparing cyclophosphamide (CTX) and calcineurin inhibitor based regimens in the management of non-immunosuppressive symptomatic therapy (NIST) resistant idiopathic membranous nephropathy (IMN). The present study was aimed at comparing the efficacy and safety of tacrolimus (TAC)/steroids with cyclical CTX/steroids (Modified Ponticelli regimen (MPR)) in patients with IMN. METHODS: Idiopathic membranous nephropathy patients (n = 70) with persistent nephrotic syndrome after at least 6 months of antiproteinuric therapy or with complications of nephrotic syndrome were equally randomized to receive TAC with oral prednisolone (TAC*) or MPR. Antibodies against m-type phospholipase A2 receptor (PLA2R Ab) were tested for at baseline and, at 6 and 12 months after the start of therapy. The primary end point was achievement of remission and secondary objectives were adverse effects and estimated glomerular filtration rate in both the study groups. RESULTS: Intention-to-treat analysis showed that remissions at the end of 6 (74% with TAC* vs. 60% with MPR; P = 0.30) and 12 months (71% with TAC* vs. 77% with MPR; P = 0.78) were comparable. PLA2R Ab titres at 6/12 months correlated with urine protein (r 0.54/0.58) and serum albumin (r -0.49/-0.53) at the end of therapy. Patients on CTX had a significantly higher risk of amenorrhea and while those on TAC had a greater risk of reversible nephrotoxicity. CONCLUSION: In NIST refractory IMN, both TAC* and MPR are comparable, but with different adverse effect profile. PLA2 R Ab has a very good association with proteinuria, and should be regularly monitored on clinical follow-up.


Asunto(s)
Corticoesteroides/uso terapéutico , Inhibidores de la Calcineurina/uso terapéutico , Glomerulonefritis Membranosa/tratamiento farmacológico , Inmunosupresores/uso terapéutico , Metilprednisolona/uso terapéutico , Tacrolimus/uso terapéutico , Corticoesteroides/efectos adversos , Adulto , Autoanticuerpos/sangre , Biomarcadores/sangre , Inhibidores de la Calcineurina/efectos adversos , Ciclofosfamida/uso terapéutico , Quimioterapia Combinada , Femenino , Glomerulonefritis Membranosa/diagnóstico , Glomerulonefritis Membranosa/inmunología , Humanos , Inmunosupresores/efectos adversos , India , Análisis de Intención de Tratar , Masculino , Metilprednisolona/efectos adversos , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Receptores de Fosfolipasa A2/inmunología , Inducción de Remisión , Tacrolimus/efectos adversos , Factores de Tiempo , Resultado del Tratamiento
6.
Ren Fail ; 38(6): 894-8, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27266801

RESUMEN

Collapsing focal segmental glomerulosclerosis (cFSGS) is characterized by rapid progression to end-stage renal disease (ESRD). We evaluated the clinicopathological spectrum of cFSGS and compared its clinical behavior to steroid and tacrolimus (TAC)-resistant noncollapsing focal segmental glomerulosclerosis (FSGS). All patients (>14 years) diagnosed with cFSGS were enrolled in the study. Staining for differentiated podocyte markers such as WT 1, PAX and KI67 were performed in all patients. The outcome and histological features of cFSGS was compared with a prospectively followed cohort of steroid and TAC-resistant noncollapsing FSGS. The study included 22 cFSGS patients and 19 cases of steroid and TAC-resistant FSGS. Complete remission, partial remission, steroid resistance, progression to ESRD and death were observed in 13.6%, 4.5%, 27.3%, 36.4% and 18.2% patients, respectively. Patients with cFSGS had higher serum creatinine and more advanced tubulointerstitial changes compared to resistant FSGS. Twenty-six percent of therapy resistant noncollapsing FSGS progressed to ESRD after two years of stopping TAC. However, there was no difference in progression to ESRD between cFSGS and therapy-resistant noncollapsing FSGS at the end of two years. Glomerular collapse in the setting of FSGS is poorly responsive to treatment and has a high rate of progression to ESRD. The long-term prognosis of cFSGS and steroid and TAC-resistant FSGS are similar.


Asunto(s)
Glomeruloesclerosis Focal y Segmentaria/tratamiento farmacológico , Glomeruloesclerosis Focal y Segmentaria/patología , Inmunosupresores/uso terapéutico , Fallo Renal Crónico/epidemiología , Esteroides/uso terapéutico , Tacrolimus/uso terapéutico , Adolescente , Adulto , Creatinina/sangre , Progresión de la Enfermedad , Femenino , Glomeruloesclerosis Focal y Segmentaria/complicaciones , Humanos , Glomérulos Renales/patología , Masculino , Persona de Mediana Edad , Podocitos/patología , Pronóstico , Estudios Prospectivos , Inducción de Remisión , Adulto Joven
7.
Med J Armed Forces India ; 72(2): 120-4, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27257321

RESUMEN

BACKGROUND: Hematuria is the most important clinical manifestation of IgA nephropathy. This study was undertaken with the objective to describe the spectrum of histological changes with reference to the Oxford classification and the ultrastructural changes in the glomerular basement membrane and to correlate them with hematuria. METHODS: 66 patients who underwent renal biopsy for IgA nephropathy were evaluated histologically by the Oxford system and also subject to electron microscopic examination for glomerular immune deposits, as well as alterations in the glomerular basement membrane. RESULTS: On comparing the histological scores generated by the Oxford classification with degree of hematuria, it was found that the status of 'endocapillary proliferation' and the status of 'tubular atrophy and interstitial fibrosis showed a significant correlation. Correlation of hematuria with location of the deposits, i.e. mesangial only, and mesangial with capillary wall deposits (subendothelial and subepithelial) did not show any association. Other alterations of the GBM were seen in 12 cases. The changes included thinning alone in 4 cases, thinning and lamellar splitting in 5 cases, and lamellar splitting alone in 2 cases. CONCLUSION: At presentation, endocapillary proliferation is one histological parameter which shows close association with hematuria.

8.
Nephrology (Carlton) ; 20(1): 25-33, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25230334

RESUMEN

AIM: This pilot study assesses the safety and feasibility of autologous mesenchymal stromal cell (MSC) transplantation in four patients that underwent living donor renal transplantation, and the effect on the immunophenotype and functionality of peripheral T lymphocytes following transplantation. METHODS: All patients received low dose ATG induction followed by calcineurin inhibitor-based triple drug maintenance immunosuppression. Autologous MSCs were administered intravenously pre transplant and day 30 post-transplant. Patients were followed up for 6 months. The frequency of regulatory T cells and T cell proliferation was assessed at different time points. RESULTS: None of the four patients developed any immediate or delayed adverse effects following MSC infusion. All had excellent graft function, and none developed graft dysfunction. Protocol biopsies at 1 and 3 months did not reveal any abnormality. Compared to baseline, there was an increase in the CD4 + CD25+FOXP3+ regulatory T cells and reduction in CD4 T cell proliferation. CONCLUSION: We conclude that autologous MSCs can be used safely in patients undergoing living donor renal transplantation, lead to expansion of regulatory T cells and decrease in T cell proliferation. Larger randomized trials studies are needed to confirm these findings and evaluate whether this will have any impact on immunosuppressive therapy.


Asunto(s)
Trasplante de Riñón , Trasplante de Células Madre Mesenquimatosas , Adulto , Femenino , Humanos , Donadores Vivos , Masculino , Trasplante de Células Madre Mesenquimatosas/efectos adversos , Proyectos Piloto , Linfocitos T , Trasplante Autólogo , Resultado del Tratamiento
9.
Rheumatol Int ; 35(9): 1511-7, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25758229

RESUMEN

Current management guidelines for lupus nephritis (LN) do not attach importance to histological indices of disease activity or chronicity. The present study was performed to evaluate the clinical relevance of these indices in determining outcomes in patients with class IV LN. We analyzed the data of all patients with biopsy-proven class IV LN seen over a 6-year period. The histopathological findings were reviewed; the activity and chronicity indices proposed by Austin [AI (Austin) & CI (Austin)] and the renal biopsy index proposed by Hill were calculated. As immunofluorescence was not done in all patients, this was excluded from calculation of the renal biopsy index, which was referred to as the modified Hill's index (MHI), which was a composite of glomerular activity index (GAI), chronicity index (CI) and tubulo-interstitial activity index (TIAI). Pearson's correlation coefficient, multilinear regression analysis and logistic analysis were performed, and p value of <.05 was considered significant. During the study period, 114 cases of LN were evaluated, of which 64 % (73/114) had class IV LN. The mean age was 26.5 years, and 92 % were females. The mean scores of AI (Austin), CI (Austin), GAI, CI, TIAI and MHI were 8.46, 2.50, 7.54, 3.06, 4.74 and 2.23, respectively. Serum creatinine correlated significantly with TIAI, CI, CI (Austin) as well as MHI, but not with AI (Austin) or GAI. The serum creatinine level was the strongest clinical parameter determining outcome, while none of the histological indices correlated with either treatment outcome or mortality. None of the histological indices performed better than serum creatinine level in determining the treatment outcomes and mortality.


Asunto(s)
Creatinina/sangre , Riñón/patología , Nefritis Lúpica/patología , Adolescente , Adulto , Niño , Femenino , Humanos , Glomérulos Renales/patología , Nefritis Lúpica/sangre , Masculino , Persona de Mediana Edad , Pronóstico , Adulto Joven
10.
Ultrastruct Pathol ; 39(2): 147-51, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25268180

RESUMEN

BACKGROUND: Proteinuria is an uncommon clinical manifestation of IgA nephropathy and is usually seen in cases with severe lesions like endocapillary proliferation. However, it is occasionally seen even with cases with mild glomerular manifestations and may even be of nephrotic range. PREDICTOR: Podocyte foot process effacement. OUTCOME: Severity of proteinuria. MEASUREMENTS: Podocyte foot process effacement was measured. Morphometric analysis was performed on transmission electron microscope images using a computerized digital photomicrograph system (BioWizard 4.2 Image analysis software, New Delhi, India). Proteinuria was measured quantitatively assigned into five grades. RESULTS: It was found that as the extent of proteinuria increased, the effacement ratio also increased, and this was most significant between "no" proteinuria and the rest of the categories. CONCLUSION: Nephrotic presentation in IgA nephropathy is a known phenomenon and in certain cases may show near normal glomerular morphology with severe foot process effacement on EM being the only significant finding to explain the proteinuria. Proteinuria in these cases shows a significant correlation with degree of foot process effacement. Renal biopsy is important in these cases because they are known to have a better prognosis and are usually steroid responsive.


Asunto(s)
Glomerulonefritis por IGA/complicaciones , Glomerulonefritis por IGA/diagnóstico , Glomérulos Renales/ultraestructura , Podocitos/ultraestructura , Proteinuria/diagnóstico , Diagnóstico Diferencial , Femenino , Humanos , Masculino , Pronóstico , Proteinuria/complicaciones
11.
Nephrol Dial Transplant ; 29(10): 1918-24, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24771498

RESUMEN

INTRODUCTION: Management of adults with steroid-resistant (SR) nephrotic syndrome due to focal segmental glomerulosclerosis (FSGS) is a challenging task. Is tacrolimus (TAC) effective in this situation without serious adverse effects? This prospective study was done to answer this question. MATERIALS AND METHODS: In patients with SR nephrotic syndrome due to FSGS, oral TAC (0.1 mg/kg/day) was started targeting a trough level of 5-10 ng/mL along with oral prednisolone (0.15 mg/kg/day) for 48 weeks. In patients with complete remission (CR), TAC dose was reduced to a target of 3-6 ng/mL whereas in partial responders, TAC trough levels were kept at 5-10 ng/mL. TAC was discontinued in those with no remission at 24 weeks and was deemed TAC resistant. Outcome, namely CR and partial remission (PR), was assessed at the end of 24 and 48 weeks. All patients were prospectively followed for 60 weeks. Relapses after CR or PR were recorded; adverse effects, namely nephrotoxicity (>25% rise in creatinine), cosmetic effects, infections and hyperglycemia, were recorded every month. RESULTS: A total of 44 SR-FSGS [not otherwise specified 33 (75%), tip lesion 03 (6.8%) and cellular variant 8 (18.1%)] were analyzed. Mean age was 25.16 ± 8.26 (18-51) years. Of 44 patients, CR and PR were achieved in 17 (38.6%) and 06 (13.6%) patients, respectively. TAC resistance was seen in 21 (47.7%) patients. Time taken to achieve remission was 15.2 ± 6 weeks. Five (21.7%) patients with CR had relapse on tapering the dose and seven (30.4%) after stopping TAC. Reversible nephrotoxicity was seen in seven (15.9%) and irreversible in four patients (9%). TAC-related diarrhea was the problem in 10 (22.7%), and infections were seen in 19 patients (43.1%). Impaired fasting glucose and diabetes mellitus were seen in 10 patients (22.7%). CONCLUSION: TAC is an effective agent in the management of SR-FSGS. However, strict renal function and blood sugar monitoring is required due to its potential nephrotoxicity and diabetogenic potential.


Asunto(s)
Resistencia a Medicamentos/efectos de los fármacos , Glomeruloesclerosis Focal y Segmentaria/complicaciones , Inmunosupresores/uso terapéutico , Síndrome Nefrótico/tratamiento farmacológico , Esteroides/farmacología , Tacrolimus/uso terapéutico , Adolescente , Adulto , Creatinina/sangre , Femenino , Humanos , Masculino , Persona de Mediana Edad , Síndrome Nefrótico/etiología , Prednisolona/uso terapéutico , Estudios Prospectivos , Recurrencia , Inducción de Remisión , Adulto Joven
12.
BMC Infect Dis ; 14: 259, 2014 May 14.
Artículo en Inglés | MEDLINE | ID: mdl-24885965

RESUMEN

BACKGROUND: Renal transplant recipients are at high risk of developing multiple infections, often concomitantly because of their immunocompromised status. Post renal transplant infections are often elusive and require extensive evaluation for proper diagnosis and treatment. A high index of suspicion is required and an attempt should be made to confirm the microbiological diagnosis from each site involved to rule out multiple infections. CASE PRESENTATION: We report a 50-year-old female, a renal allograft recipient who presented with left hemiplegia, esophageal ulcers and fever 3 months after her transplant. Esophageal biopsy revealed Cytomegalovirus (CMV) inclusions and the whole blood quantitative CMV polymerase chain reaction (PCR) was positive. Neuroimaging showed a brain abscess, stereotactic biopsy from which revealed Scedosporium apiospermum on fungal culture. Her tacrolimus and mycophenolate were stopped and she was managed with intravenous ganciclovir and voriconazole. With these measures, she showed marked improvement in her general and neurological condition. Two months later, she developed recurrence of fever with dry cough. Radiological investigation revealed a cavitating lung lesion, a needle aspiration from which demonstrated acid-fast bacilli. She was started on antituberculous treatment. With these measures, she recovered completely and maintained good graft function despite being on only prednisolone 10 mg once a day. CONCLUSION: Although CMV disease is not uncommon in the first three months post transplant, Scedosporium is a rare cause of brain abscess. On the other hand, tuberculosis is common in transplant recipients, especially in developing countries, like India. However, this is the first case report of occurrence of these three infections in the same patient, demonstrating the importance of a good microbiological work-up from each site involved in immunosuppressed subjects.


Asunto(s)
Infecciones por Citomegalovirus/complicaciones , Trasplante de Riñón , Micosis/complicaciones , Complicaciones Posoperatorias/microbiología , Tuberculosis/complicaciones , Antifúngicos/uso terapéutico , Antituberculosos/uso terapéutico , Antivirales/uso terapéutico , Citomegalovirus/aislamiento & purificación , Infecciones por Citomegalovirus/tratamiento farmacológico , Países en Desarrollo , Femenino , Ganciclovir/uso terapéutico , Humanos , Huésped Inmunocomprometido , Inmunosupresores/efectos adversos , Fallo Renal Crónico/cirugía , Persona de Mediana Edad , Mycobacterium tuberculosis/aislamiento & purificación , Micosis/tratamiento farmacológico , Scedosporium/aislamiento & purificación , Receptores de Trasplantes , Trasplante Homólogo , Voriconazol/uso terapéutico
13.
Transpl Int ; 27(8): 784-92, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24684170

RESUMEN

Glomerular diseases of the transplanted kidney are the most important cause of poor long- term outcome. The estimation of the magnitude of this problem and an elucidation of pathogenic mechanism is essential for improvement of graft survival. This study from the Indian subcontinent aims (i) to determine the incidence of transplant glomerulopathy (TG) and thrombotic microangiopathy (TMA) in a large cohort of indicated renal transplant biopsies, (ii) to evaluate the histological and ultrastructural features of TG and TMA, and (iii) to assess the relationship between the two glomerular lesions. Of a total of 1792 indication renal transplant biopsies received over 5 years (2006-2010), 266 biopsies (of 249 patients) had significant glomerular pathology and were further analyzed along with immunofluorescence, electron microscopy (EM), and C4d immunohistochemistry. TG is the most common glomerular lesion followed by TMA seen in 5.97% and 5.08% of allograft biopsies, respectively, which constitutes 40.23% and 34.2% of biopsies with significant glomerular lesions. Pathologic antibody-mediated rejection (AMR) is associated with both TG and TMA in 71% and 46.5%, respectively. A coexistent TG was found in 18.4% of biopsies with TMA. Endothelial swelling with subendothelial widening, a feature of TMA, is also seen in early TG by EM. Our findings support the concept that TG evolves from a smoldering TMA of various causes.


Asunto(s)
Glomérulos Renales/patología , Trasplante de Riñón/efectos adversos , Microangiopatías Trombóticas/patología , Adolescente , Adulto , Anciano , Aloinjertos , Biopsia , Complemento C4b/análisis , Femenino , Humanos , Masculino , Persona de Mediana Edad , Fragmentos de Péptidos/análisis
14.
Transpl Int ; 27(10): 1007-14, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24852800

RESUMEN

Deceased donor organ programme is still in infancy in India. Assessing deceased donation potential and identifying barriers to its utilization are required to meet needs of patients with organ failure. Over a 6-month period, we identified and followed all presumed brainstem dead patients secondary to brain damage. All patients requiring mechanical ventilation with no signs of respiratory activity and dilated, fixed and nonreacting pupils were presumed to be brainstem dead. All events from suspicion of brainstem death (BSD) to declaration of BSD, approach for organ donation, recovery and transplants were recorded. Subjects were classified as possible, potential and effective donors, and barriers to donation were identified at each step. We identified 80 presumed brainstem dead patients over the study period. The mean age of this population was 35.9 years, and 67.5% were males. When formally asked for consent for organ donation (n = 49), 41 patients' relatives refused. The conversion rate was only 8.2%. The number of possible, potential and effective donors per million population per year were 127, 115.7 and 9.5, respectively. The poor conversion rate of 8.2% suggests a huge potential for improvement. Family refusal in majority of cases reflects poor knowledge and thus warrants interventions at community level.


Asunto(s)
Muerte Encefálica , Trasplante de Órganos/métodos , Donantes de Tejidos/provisión & distribución , Obtención de Tejidos y Órganos/métodos , Adulto , Anciano , Estudios de Cohortes , Selección de Donante , Femenino , Hospitales Públicos , Humanos , Incidencia , India , Unidades de Cuidados Intensivos , Masculino , Persona de Mediana Edad , Trasplante de Órganos/estadística & datos numéricos , Estudios Retrospectivos , Medición de Riesgo , Adulto Joven
15.
Rheumatol Int ; 34(12): 1721-7, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-24838685

RESUMEN

Rapidly progressive renal failure is a common but severe feature of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis. A histopathological classification for ANCA-associated pauci-immune glomerulonephritis was developed for prognostication of these patients. The present study aims to classify patients of pauci-immune glomerulonephritis according to this classification and its impact on outcome. Eighty-six subjects with pauci-immune glomerulonephritis between July 2006 and October 2012 were included in the study. Their renal biopsies were reviewed and classified into focal, crescentic, sclerotic and mixed class as per the new classification. The outcomes were analyzed after 6 months of treatment. Of the 86 subjects, 34 (39.53 %) were granulomatosis with polyangiitis, 36 (41.86 %) microscopic polyangiitis, 1 eosinophilic granulomatosis with polyangiitis, while the rest (17.44 %) were unclassifiable. Thirteen (15.5 %), 43 (51.2 %), 12 (14.3 %) and 16 (19 %) patients were classified as focal, crescentic, sclerotic and mixed class, respectively. The mean serum creatinine at baseline was 280.23, 659.46, 573.72 and 542.78 µmol/L in focal, crescentic, sclerotic and mixed class, respectively. The probability of improvement in renal functions at 6 months decreased from focal to crescentic to mixed to sclerotic class, while the probability of death was highest in the sclerotic class followed by the mixed class. This difference in outcome was maintained irrespective of the clinical diagnosis or the Birmingham Vasculitis Activity Score. Our study has shown that the histopathological classification can be used to predict the severity of renal dysfunction as well as the treatment outcomes in pauci-immune glomerulonephritis.


Asunto(s)
Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/patología , Anticuerpos Anticitoplasma de Neutrófilos/inmunología , Glomerulonefritis/patología , Riñón/patología , Adolescente , Adulto , Anciano , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/clasificación , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/inmunología , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/mortalidad , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/terapia , Biomarcadores/sangre , Biopsia , Creatinina/sangre , Progresión de la Enfermedad , Femenino , Glomerulonefritis/clasificación , Glomerulonefritis/inmunología , Glomerulonefritis/mortalidad , Glomerulonefritis/terapia , Humanos , Estimación de Kaplan-Meier , Riñón/inmunología , Masculino , Persona de Mediana Edad , Fenotipo , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
16.
BMC Nephrol ; 14: 262, 2013 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-24289828

RESUMEN

BACKGROUND: The current treatment options for idiopathic membranous nephropathy (IMN) carry significant toxicity. In this prospective, observational pilot study, we used single time infusion of bone marrow derived autologous mononuclear cells (MNCs) in adult patients with treatment refractory IMN. METHODS: Twelve patients of biopsy proven IMN who had failed a cyclical 6-month regimen of steroid and cyclophosphamide were enrolled in the study. Bone-marrow was harvested from the iliac crest and underwent processing to isolate MNCs. Cells were counted and subjected to viability testing before being infused through a peripheral vein on the same day. After the infusion, subjects were followed up monthly for the next six months. Supportive treatment including angiotensin antagonists and statins was continued throughout the study period. RESULT: The proteinuria, serum albumin and creatinine values at entry were 2.97 ± 0.6 gm/1.73 m2/d, 2.27 ± 1.1 gm/l and 0.9 ± 0.8 mg/dl respectively. There was a reduction in proteinuria (p < 0.0001), and increase in serum albumin (p = 0.001) at 1 month, with 64% of the subjects showing >50% reduction in proteinuria. However, the response was ill sustained. At 6 months, only 2 patients had >50% reduction. Serum creatinine remained stable throughout the study period. No infusion related side effects were noted. CONCLUSION: Autologous mononuclear cell infusion leads to transitory reduction in proteinuria and improvement in serum albumin in treatment refractory IMN. This effect, however, is transient. Whether this can be overcome by repeated infusion of cultured mesenchymal cells needs to be investigated.


Asunto(s)
Trasplante de Médula Ósea/métodos , Glomerulonefritis Membranosa/complicaciones , Trasplante de Células Madre Mesenquimatosas/métodos , Proteinuria/etiología , Proteinuria/prevención & control , Adolescente , Adulto , Enfermedad Crónica , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Resultado del Tratamiento , Adulto Joven
17.
Ren Fail ; 35(1): 170-2, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23173621

RESUMEN

Acute kidney injury (AKI) can develop after multiple wasp or bee stings. The etiology is the acute tubular necrosis secondary to shock, pigment toxicity, interstitial nephritis, or direct nephrotoxicity of venom. We report a 40-year-old female who presented with oliguric AKI after a single wasp sting on her hand. Her history, examination, and investigations did not support any of the established causes of AKI in such settings. She did not improve with supportive management and dialysis, and kidney biopsy showed acute cortical necrosis (ACN). This is the first report of ACN after a single wasp sting.


Asunto(s)
Lesión Renal Aguda/etiología , Mordeduras y Picaduras de Insectos/complicaciones , Necrosis Tubular Aguda/complicaciones , Venenos de Avispas/envenenamiento , Avispas , Lesión Renal Aguda/diagnóstico , Lesión Renal Aguda/terapia , Adulto , Animales , Biopsia , Diagnóstico Diferencial , Femenino , Humanos , Necrosis Tubular Aguda/diagnóstico , Necrosis Tubular Aguda/terapia , Túbulos Renales/ultraestructura , Microscopía Electrónica , Diálisis Renal
18.
Indian J Urol ; 29(2): 133-5, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23956516

RESUMEN

Tenckhoff catheter placement is a well established procedure to facilitate continuous ambulatory peritoneal dialysis (CAPD) in end-stage renal disease (ESRD) management. The removal and replacement of the catheter following complications adds morbidity in an already immunocompromised patient of ESRD. A salvage procedure with partial replacement was undertaken in four patients on CAPD. By catheter repositioning, the complications of catheter removal (like wound hematoma, abscess, need of break-in period hemodialysis) and of reinsertion (like leak, obstruction, migration, infection and failure) are avoided. It also reduced the economic burden of insertion in a new catheter.

19.
BMC Nephrol ; 13: 10, 2012 Mar 06.
Artículo en Inglés | MEDLINE | ID: mdl-22390203

RESUMEN

BACKGROUND: There are no national data on the magnitude and pattern of chronic kidney disease (CKD) in India. The Indian CKD Registry documents the demographics, etiological spectrum, practice patterns, variations and special characteristics. METHODS: Data was collected for this cross-sectional study in a standardized format according to predetermined criteria. Of the 52,273 adult patients, 35.5%, 27.9%, 25.6% and 11% patients came from South, North, West and East zones respectively. RESULTS: The mean age was 50.1 ± 14.6 years, with M:F ratio of 70:30. Patients from North Zone were younger and those from the East Zone older. Diabetic nephropathy was the commonest cause (31%), followed by CKD of undetermined etiology (16%), chronic glomerulonephritis (14%) and hypertensive nephrosclerosis (13%). About 48% cases presented in Stage V; they were younger than those in Stages III-IV. Diabetic nephropathy patients were older, more likely to present in earlier stages of CKD and had a higher frequency of males; whereas those with CKD of unexplained etiology were younger, had more females and more frequently presented in Stage V. Patients in lower income groups had more advanced CKD at presentation. Patients presenting to public sector hospitals were poorer, younger, and more frequently had CKD of unknown etiology. CONCLUSIONS: This report confirms the emergence of diabetic nephropathy as the pre-eminent cause in India. Patients with CKD of unknown etiology are younger, poorer and more likely to present with advanced CKD. There were some geographic variations.


Asunto(s)
Nefropatías Diabéticas/mortalidad , Fallo Renal Crónico/mortalidad , Sistema de Registros/estadística & datos numéricos , Distribución por Edad , Comorbilidad , Femenino , Humanos , India/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Medición de Riesgo , Factores de Riesgo , Distribución por Sexo , Clase Social , Análisis de Supervivencia , Tasa de Supervivencia
20.
Postgrad Med J ; 88(1035): 15-20, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22052882

RESUMEN

BACKGROUND: Immunoglobulin A (IgA) nephropathy is the most common glomerulonephritis worldwide, but has a variable geographic distribution. the bulk of the disease burden is borne by asian countries. however, its exact prevalence or clinicopathologic spectrum in india is not well documented. METHODS: This cross sectional study analysed the renal biopsy findings and clinical features at presentation in 66 patients of primary IgA nephropathy diagnosed over a period of 2 years (2007-2008). The results were compared with studies from other centres in the country and elsewhere. RESULTS: IgA nephropathy comprised 8.1% of all native kidney biopsies. The mean age of the patients was 29.9 years with a male:female ratio of 4.4:1. Most patients presented with renal failure and a significant percentage (23%) also had nephrotic range proteinuria. Renal biopsies were classified by the Haas classification and were further scored by the MEST scoring system of the Oxford classification. By Haas classification, 41 cases (62%) showed advanced sclerotic lesions of class V. Active crescents (cellular or fibrocellular) were seen in 42% of cases, and 26% of cases showed endocapillary proliferation. Serum creatinine values were highest in the presence of proliferative lesions. MEST scoring of the Oxford classification was not applicable in approximately 18% of cases because of the presence of advanced sclerotic lesions. On immunofluorescence, the majority of the cases showed both mesangial and membranous positivity for IgA antisera. Electron microscopy revealed para-mesangial location of immune complex deposition in the majority of the cases. It also showed glomerular basement membrane abnormalities in two cases. CONCLUSION: Comparison of clinical and pathological features revealed that this disease presents as an advanced disease in much younger individuals in this study compared to other studies. Elucidation of the underlying factors may have immense therapeutic implications.


Asunto(s)
Glomerulonefritis por IGA/patología , Glomerulonefritis/patología , Enfermedades Renales/patología , Adulto , Pueblo Asiatico , Biopsia , Estudios Transversales , Femenino , Técnica del Anticuerpo Fluorescente , Membrana Basal Glomerular/patología , Mesangio Glomerular/inmunología , Mesangio Glomerular/patología , Glomerulonefritis por IGA/epidemiología , Histología , Humanos , India , Enfermedades Renales/epidemiología , Masculino , Microscopía Electrónica , Proteinuria/epidemiología , Proteinuria/patología
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